TY  - BOOK
AU  - Greenwood,Ivan A.
AU  - Holdam,J.Vance
AU  - MacRae,Duncan
TI  - Electronic instruments
U1  - 621.38 
PY  - 1948///
CY  - New York
PB  - McGraw-Hill Book Co.
KW  - Electronic apparatus and appliances
KW  - Mathematical instruments
KW  - Servomechanisms
N1  - Includes index
ER  -